Offshore wind turbine foundation, construction method thereof, ice-resistant device and wind generating set

Abstract

The invention discloses an offshore wind turbine foundation, a construction method thereof, an ice-resistant device and a wind generating set. The ice-resistant device comprises a shell plate, toggle plates, watertight partition plates, an upper ring beam and a lower ring beam; the upper ring beam and the lower ring beam are connected with the two ends of the toggle plates respectively; the toggle plates are evenly arranged in the circumferential directions of the upper ring beam and the lower ring beam; the watertight partition plates are arranged in the middles of the toggle plates; the width of the toggle plates gradually decreases from the center to the ends; the shell plate is symmetrical about the watertight partition plates up and down; and the shell plate is connected with the toggle plates, the upper ring beam and the lower ring beam, and the shell plate is curved. Compared with the prior art, the ice-resistant device of the invention has the advantages that the impact force of floating ice can be decomposed into supporting force perpendicular to the shell plate more effectively, and the failure mode of the floating ice changes from compressive failure to bending failure; the arrangement is flexible, the size and shape parameters of an ice-resistant cone can be analyzed according to calculation, arrangement is conducted along the periphery of a main structure, and an optimal effect is achieved; and the construction is simple and rapid, and cost is low.

Description

technical field [0001] The invention belongs to the technical field of operation and maintenance of offshore wind turbines, and in particular relates to an offshore wind turbine foundation and a construction method thereof, an anti-icing device and a wind turbine. Background technique [0002] With the requirements of energy transformation, wind power has become one of the fastest-growing green energy sources due to its technological maturity and low cost of electricity. Offshore wind power does not need to occupy land area because it is close to the power consumption center, so its development in recent years has been supported by all walks of life. [0003] In the construction of offshore wind farms, in the sea areas of coastal provinces such as Liaoning, Hebei, and Tianjin, it is necessary to consider the impact of sea ice on the infrastructure due to climate reasons. Due to the large impact force of sea ice and the various modes of ice load, the limit and fatigue of the...

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Problems solved by technology

[0004] However, the current anti-ice cone design greatly increases the water plane, which will increase the ultimate load and fatigue load of wave action in the absence of ice floes, resulting in a larger engineering volume of the foundation column to resist wave loads; and , the existing anti-ice cone design slope curvature remains unchanged, and does not reduce the impact force of the ice floes most efficiently, and cannot guarantee that the failure modes of ice floes of different thicknesses are all bending failures

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